Air line lubricator

ABSTRACT

An air line lubricator has a resilient flapper which normally closes about a venturi oil feeding passage. The flapper may act in either direction upon the passage of a large flow to permit bypass of the venturi. A simple retaining ring with a pivoted latch holds the reservoir on the lubricator housing.

United States Patent Brake Oct. 10, 1972 [54] AIR LINE LUBRICATOR 3,540,551 11/1970 Ohshida ..184/56 A 2,969,748 l/196l Staats et 31...; ..l37/599 X [72] Invent Brake 3,023,849 3/1962 Tine 1 84/55 A [73] Assignee: Scovill Manufacturing Company, 3,214,054 10/ 1965 Poethig et a] ..220/46 Waterbury, Conn. P E M l A An ak rima xamineranue ton as 22 Flled! Aug. 31, 1970 2' Hoopes [21] Appl. No.: 68,117

[57] ABSTRACT An air line lubricator has a resilient flapper which nor- [5?] US. (il. y closes about a venturi oil feeding p g The [5 ll-ll. C n flapper may act in either direction upon the passage of [58] Fleld or Search ..184/55, 55 A, 56, 56 A; a large flow to permit bypass of the vemm A Simple 137/5253, 599 X retaining ring with a pivoted latch holds the reservoir on the lubricator housing. d [56] References Cite 3 Cl 11 Drawing figures UNITED STATES PATENTS 3,368,645 2/1968 Hoffman et al. ..l84/55 R PATENTEDum 10 m2 3.696.889

sum 1 UP a INVENTOR. Cecil Clifford Broke MW W4 ATTORNEY.

PATENTEDUM 10 I972 Q 3.6 96. 889

SHEEIEUFB F1 g 5 I INVENTOR.

I Cecil Clifford Broke W W ATTORNEY.

PATENTEDBBI 10 m2 SHEEI 3 0F 3 V/ /km 7 IOO INVENTOR.

Cecil Clifford Broke Fig I0 ATTORNEY.

United States Patent Armstrong [54] ARTICLE DELIVERY SYSTEM Cahn ..198/177 X 1 Oct. 10, 1972 FOREIGN PATENTS OR APPLICATIONS Primary Examiner-Harvey C. Homsby Assistant Examiner-Merle F. Maffei Attorney-Dominik, Knechtel & Godula [57] ABSTRACT An aisle delivery system operable in limited traffice areas such as the passenger aisle in a commercial aircraft, said system permitting delivery of food and beverages by placing trays on pallets pivoted to a bracket depending from an overhead carrier which moves along a conveyor track fixed to the upper part of the fuselage. Means are provided to immobilize the overhead carrier at selected positions along the conveyor track, and a universal joint is provided between the bracket and the overhead conveyor to counteract angular flight changes. Junction means connect the main conveyor track to branch tracks which lead to service areas or the like.

6 Claims, 1 1 Drawing Figures IIO 

1. An air line lubricator comprising a housing having an inlet at one side and an outlet at the other side with a bypass passage running therebetween, the passage having an upper wall and a lower wall, venturi tube means mounted in the passage along the upper wall and oriented in the path of flow through the housing and providing clearance with the side walls and lower wall of the passage, a generally rectangular resilient flapper having at its lower end an enlarged portion presenting an upwardly facing shoulder, apertured retaining means in the lower wall receiving the upper portion of the flapper, and supporting means holding the flapper upward with its shoulder butting up against the retaining means, the flapper being notched at its upper end to conform to the shape of the venturi tube means and its mounting to substantially close the passage except on occasion of heavy pressure differential thereacross in either direction whereupon the flapper will flex to permit flow through the passage, an oil reservoir mounted on the housing, and means to supply oil from the reservoir to the inside of said venturi tube, the mounting of the lower end of the flapper being accessible from the outside of the housing to facilitate removal of the flapper.
 2. An air line lubricator as claimed in claim 1 wherein the support means is a plate secured against the bottom side of the housing.
 3. An air line lubricator as claimed in claim 1 wherein the reservoir is disposed against the underside of the housing over said plate. 